After some additional checking, I found that the patch mentioned in comment #9 is indeed applied - so LANG=C is set. So this isn't it. Strangely, during my tests I seem to remember that I got de_AT (i.e., German) output when printing the dates to the command line (for debugging purposes). So maybe LANG=C doesn't kick in, at least not in SimpleDateFormat?
After some additional checking, I found that the patch mentioned in comment #9 is indeed applied - so LANG=C is set. So this isn't it. Strangely, during my tests I seem to remember that I got de_AT (i.e., German) output when printing the dates to the command line (for debugging purposes). So maybe LANG=C doesn't kick in, at least not in SimpleDateFormat?